| Dollis Hill to Noventa Vicentina | 690.99 mi (1,112.04 km) |
| Dollis Hill to Novi di Modena | 687.92 mi (1,107.09 km) |
| Dollis Hill to Novi Ligure | 626.66 mi (1,008.51 km) |
| Dollis Hill to Nuoro | 901.18 mi (1,450.30 km) |
| Dollis Hill to Occhiobello | 709.97 mi (1,142.59 km) |
| Dollis Hill to Oderzo | 703.34 mi (1,131.92 km) |
| Dollis Hill to Oggiono | 591.36 mi (951.70 km) |
| Dollis Hill to Olbia | 868.70 mi (1,398.04 km) |
| Dollis Hill to Oleggio | 577.22 mi (928.95 km) |
| Dollis Hill to Olgiate Comasco | 578.63 mi (931.22 km) |
| Dollis Hill to Olgiate Olona | 583.54 mi (939.12 km) |
| Dollis Hill to Omegna | 555.60 mi (894.16 km) |
| Dollis Hill to Opera | 607.18 mi (977.16 km) |
| Dollis Hill to Oppeano | 677.84 mi (1,090.88 km) |
| Dollis Hill to Orbassano | 576.29 mi (927.45 km) |
